Current Outbreaks

Active and recently monitored hantavirus outbreaks around the world.

MV Hondius Cruise Ship Outbreak

Active

WHO reports a total of 11 cases (8 confirmed, 1 inconclusive, 2 probable), including 3 deaths (CFR 27%). Two new confirmed cases from France and Spain since last update. 147 passengers and crew were onboard. Eight countries affected: Argentina, Cabo Verde, Chile, Netherlands, Spain, United Kingdom, France, and United States.

Location

International Waters (Mediterranean)

Start Date

May 2, 2026 (WHO notified)

Virus Type

Andes

Source

WHO DON601 (May 13, 2026)

Cases

Deaths

Finland Seasonal Surge

Monitoring

Annual seasonal increase in Puumala virus cases, typical for Nordic countries during winter months. Finland typically reports 1,000-3,000 HFRS cases annually.

Location

Finland

Start Date

January 2026

Virus Type

Puumala

Source

ECDC Annual Epidemiological Report (estimated)

1,200

Cases

Deaths

Southwestern US Cases

Monitoring

Cumulative confirmed HPS cases in the United States since 1993. The Four Corners region remains the highest-risk area for Sin Nombre virus.

Location

Arizona, New Mexico, Colorado, Utah

Start Date

Ongoing

Virus Type

Sin Nombre

Source

CDC (cumulative since 1993)

890

Cases

Deaths